Global patent index - EP 0999247 A1

EP 0999247 A1 2000-05-10 - Method of manufacturing gelatin

Title (en)

Method of manufacturing gelatin

Title (de)

Verfahren zur Herstellung von Gelatine

Title (fr)

Procédé pour la fabrication de gélatine

Publication

EP 0999247 A1 (EN)

Application

EP 99203457 A

Priority

US 18544398 A

Abstract (en)

[origin: US5908921A] The present invention is a process for the manufacture of gelatin which includes providing a collagen containing material and demineralizing the collagen containing material to produce ossein. The ossein is added to a water solution containing at least 3% sodium hydroxide or potassium hydroxide and at least 3% sodium sulfate for a time sufficient to form a reacted slurry. The reacted slurry is heated to a temperature of at least 45 DEG C. for a time sufficient to solubilize the ossein thereby producing a solution containing gelatin. The pH of the solution containing gelatin is raised to greater than 9.8. The pH of the solution containing gelatin is reduced with a sulfate salt of a divalent or trivalent metal to a neutral pH (between 7.0 and 8.0). The pH of the gelatin solution is then lowered to between 5.0 and 6.0 and a polymeric flocculant is added to the gelatin solution in an amount of less than 0.1% based on the dry weight of the gelatin to form a floc and the floc is removed. The resulting gelatin is filtered and desalted.

IPC 1-7 (main, further and additional classification)

C09H 3/00

IPC 8 full level (invention and additional information)

A23L 29/20 (2016.01); C08L 99/00 (2006.01); C09H 3/00 (2006.01); G03C 1/047 (2006.01)

CPC (invention and additional information)

C09H 3/00 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

US 5908921 A 19990601; DE 69908277 D1 20030703; DE 69908277 T2 20040408; EP 0999247 A1 20000510; EP 0999247 B1 20030528; JP 2000139367 A 20000523

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